Improved sugar-press



UNITED STATES PATENT OFFICR.

. D. o. RIees AND L. s. RIGes, or OMAHA CITY, NEBRASKA TERRITORY.

|MPRo`vED SUGAR-PRESS.

Specification forming part of Letters Patent No. .17.984, dated May 30, 1865.

To @ZZ whom it may concern:

Be it known that we, D. C. RIGGs and L. S. RIGGS, both of Omaha City, in the county of Douglas and rIerritory of Nebraska, have invented a new and useful Improvement in Sugar-Presses; and we do hereby declare that the following is a full, clear, and exact descript-ion thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming a part of this speciiicatiomin which- Figure l is a side sectional elevation; Fig. 2, a plan sectional view; Fig. 3, a cross-sectional elevation of the lower portion of the machine.

Similar letters of reference indicate like parts.

Upon a rectangular platform A, made of wood or other material, we erect a frame consisting of two uprights, B B, and a top crossbar, C, all firmly framed together.

D is a sliding base-block resting upon platform A, and arranged to slide thereon laterally between two guide-bars, E E, that are secured, in the manner shown. upon the surface of the platform. The press-box F, which receives the sugar, rests upon the base-block D. so that the press-box F moves laterally with the base-block. The object of this lateral movement of the box F is to facilitate the filling of the box byremoving it from its position directly under the cross-bar C. rlhe base-block D and platform A have a central opening, G, equal in diameter to the base of the box F. Under the platform there is arranged a sliding drawer, H, to receive the contents of the box F when discharged. In the baseblock D there is a lateral opening of wedge form, which receives a wedge, I. The width of this wedge is more than equal to the diameter of the box F, and when the wedge is inserted it forms a bottom to the box F; but when the wedge is withdrawn the contents of the box F will fallthrough the opening G into the drawer H below. Within the box F there is a piston, J, to which a rod, K, is attached, which is intended to have a screw-thread cut upon it, said screw being intended to pass through the cross-bar C, and also pass through a nut placed in said cross-bar, so that by turning said rod K the pistonwill be removed and the contents of the box F will. be pressed. The construction and arrangement of this screw-rod and piston are similar to the ordinary pressingscrews and require no special description.

The box F is made of metal or other suitable material, and its sides are perforated, as shown, to permit the escape of liquid matter while retaining the solid. The exterior of the box F is also coveredA or surrounded by cloth a, or other porous material, to assist further the above-named purpose; and upon the exterior of the cloth there is arranged a binding composed of a coiled iron rod or wire, b, as shown, the object of whichV is to prevent the bursting or breaking of the box F under the pressure of the piston, and also to hold the covering-cloth a.

In operating the machine the baseblock D and box F are moved a little on one side of the cross-bar C.' The wedge is inserted and the box F filled with the crude sugar and niolasses. The box F is then returned to its place and the rod K4 moved down so as to press the mass. The molasses escapes through the perforations in the box F and through the cloth a and trickles down upon the top of block D, flowing along the groove c thereon, and a groove, d, cut in the top and front end ofthe wedge I, when the liquid falls into a vessel to be there placed for its reception. When all the liquid has been expelled, the wedge is withdrawn and the sugar falls into the drawer H below.

The machine may be employed not only for the pressing of sugar, but for all kinds of material from which liquid matter is to be separated from solid. A

Ve do not claim, broadly, the invention of perforated pressing-boxes and screw-presses; but,

Having thus described our invention, we claim as new and desire to secure by Letters Patent- Tlie combination of the pressing-box F, baseblock D, and bottom wedge, I, constructed and arranged to operate substantially as described.

1). C. RIGGS. L. S. RIGGS. Witnesses:

J. It. MRRRDITII,

N. I. IsAAcs. 

